Home / 308,979-413,836

Finding the Third Proportional to 308,979 and 413,836

Calculator

Solution

The third proportional to 308,979 and 413,836 is: 554,277.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,979 : 413,836 = 413,836 : x
  2. Step 2: Convert to fraction form
    308,979/413,836 = 413,836/x
  3. Step 3: Cross multiply
    308,979x = 413,836 × 413,836
  4. Step 4: Simplify right side
    308,979x = 171,260,234,896
  5. Step 5: Solve for x
    x = 171,260,234,896/308,979
  6. Step 6: Final answer
    x = 554,277.91

Related Problems

Find third proportional to 154,489.50 and 206,918
Half scale
Find third proportional to 617,958 and 827,672
Double scale
Find third proportional to 308,981 and 413,839
Similar ratio
Find third proportional to 463,468.50 and 620,754
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.